function doPrint() { 
	var oWin=window.open("","_blank"); 
	var strPrint="<h4 style='font-size:18px; text-align:center;'>打印预览区</h4>\n"; 
	var obj = document.getElementById("text");
	strPrint=strPrint + "<script type=\"text/javascript\">\n";
	strPrint=strPrint + "function printWin()\n"; 
	strPrint=strPrint + "{"; 
	strPrint=strPrint + "var oWin=window.open(\"\",\"_blank\");\n"; 
	strPrint=strPrint + "oWin.document.write(document.getElementById(\"content\").innerHTML);\n";
	strPrint=strPrint + "oWin.focus();\n"; 
	strPrint=strPrint + "oWin.document.close();\n"; 
	strPrint=strPrint + "oWin.print()\n"; 
	strPrint=strPrint + "oWin.close()\n"; 
	strPrint=strPrint + "}\n"; 
	strPrint=strPrint + "<\/script>\n"; 

	strPrint=strPrint + "<hr size=1 />\n"; 
	strPrint=strPrint + "<div id=\"content\">\n"; 
	strPrint=strPrint + obj.innerHTML + "\n"; 
	strPrint=strPrint + "</div>\n"; 
	strPrint=strPrint + "<hr size=1 />\n";  
	strPrint=strPrint + "<div style='text-align:center'><button onclick='printWin()' style='padding-left:4px;padding-right:4px;'>打 印</button><button           onclick='window.opener=null;window.close();' style='padding-left:4px;padding-right:4px;'>关 闭</button></div>\n";  
        oWin.document.write(strPrint); 
	oWin.focus(); 
	oWin.document.close(); 
} 
